FIX updated Atracsys cmake to align with SDK changes

[atracsys-sbt]

Atracsys has changed its SDK inclusion via CMake. The following PR reflects these changes.
I have also changed some of the comments to be more inclusive to the fusionTrack.

[Sunderlandkyl]

Can you add back the PLTools path hints to FindAtracsysSDK? It is used by our build machines to compile Plus without installing SDKs.

[atracsys-sbt]

I added back the PLTools path hints.

[Sunderlandkyl]

I don't think the path hints are being used anymore. Can you update FindAtracsysSDK.cmake so that it will check for the SDK in PLTools?

[atracsys-sbt]

I'm a bit confused, in my last commit I added the path hints as you requested so that PLTools would find the SDK. I'm not sure what else I should do to facilitate the SDK check in PLTools (platform which I don't have any knowledge of).
Could you please be a bit more specific ? Thanks

[Sunderlandkyl]

In the previous version, the SDK was searched for using the path hints, to find the location of "include/ftkTypes.h":

find_path(ATRACSYS_SDK_DIR include/ftkTypes.h
  PATHS ${ATRACSYS_SDK_PATH_HINTS}
  DOC "Atracsys SDK directory." )

The desired behavior is that if we have a PLTools folder, we should check there first to set ATRACSYS_DIR, before looking for the installed SDK. Probably this can be done by adding ${ATRACSYS_SDK_INSTALL_PATH} to the path hints after PLTools, and using this to set ATRACSYS_DIR:

find_path(ATRACSYS_DIR cmake/Atracsys/AtracsysConfig.cmake"
  PATHS ${ATRACSYS_SDK_PATH_HINTS}
  DOC "Atracsys directory." )

PLTools is just a version-controlled folder containing SDKs for all of the different devices that we use. I can adjust the directories to search for the SDK in PLTools, so don't worry about the exact path.

[atracsys-sbt]

Ok, it should finally work (it does on my machine). The PLtools path hints are set before checking for the installed SDK. Also, I changed the name of the cmake Atracsys variables to avoid a Warning during cmake configuration. There is a PlusLib PR related to the current PR, which should get merged simultaneously.

[Sunderlandkyl]

Thanks! I added the hints to find_package. Changes integrated in 8a693d2 and 709b11c.